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Only draw each rectangle outline pixel once

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This commit is contained in:
Andrew Murray 2021-02-22 07:48:58 +11:00
parent 058b8d3d12
commit c0ee869c2c
3 changed files with 16 additions and 2 deletions
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Tests/images/imagedraw_rectangle_translucent_outline.png Normal file
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14
Tests/test_imagedraw.py
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@ -692,6 +692,20 @@ def test_rectangle_I16():
assert_image_equal_tofile(im.convert("I"), "Tests/images/imagedraw_rectangle_I.png")
def test_rectangle_translucent_outline():
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im, "RGBA")
# Act
draw.rectangle(BBOX1, fill="black", outline=(0, 255, 0, 127), width=5)
# Assert
assert_image_equal_tofile(
im, "Tests/images/imagedraw_rectangle_translucent_outline.png"
)
def test_floodfill():
red = ImageColor.getrgb("red")

4
src/libImaging/Draw.c
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@ -724,8 +724,8 @@ ImagingDrawRectangle(
for (i = 0; i < width; i++) {
draw->hline(im, x0, y0 + i, x1, ink);
draw->hline(im, x0, y1 - i, x1, ink);
draw->line(im, x1 - i, y0, x1 - i, y1, ink);
draw->line(im, x0 + i, y1, x0 + i, y0, ink);
draw->line(im, x1 - i, y0 + width, x1 - i, y1 - width + 1, ink);
draw->line(im, x0 + i, y0 + width, x0 + i, y1 - width + 1, ink);
}
}